EN AW – 2014 (AlCu4SiMg – 3.1255)

Stand: September 2018 - Quelle: DIN EN 573-3 / EN 515 / DIN 17611:2011

1. Chemical composition of EN AW – 2014

in the aftermath of DIN EN 573-3 (in % of the mass, rest AL)

Si Fe Cu Mn Mg Cr Zn Ti Pb Other elements
0,4- 0,7 0,15- 0,15 0,8- 0,04- 0,25 0,15 0,15
0,8 0,4 1,2 0,35 0,15

2. mechanical properties of EN AW – 2014

in the aftermath of DIN EN 485-2 Sheets and plates (common conditions)

Condition  Nominal thickness Tensile strength Plug-in limit Ultimate elongation Rigor
in mm Rm in MPa Rp0,2 in MPa in % (min.) HBS
over up to min max min max A50 A
T4/T451 0,4 1,5 395 240 14 10 110
1,5 6,0 395 240 14 10 110
6,0 12,5 400 250 14 112
12,5 40 400 250 10 112
40 100 395 250 7 111

in the aftermath of DIN EN 755-2 pressed or DIN EN 754-2 drawn profiles (common conditions)

Condition Nominal thickness Tensile strength Plug-in limit Ultimate elongation Rigor
in mm Rm in MPa Rp0,2 in MPa in % (min.) HBS
over up to min max min max A50 A
25 370 230 13 11
25 75 410 270 12
75 1,5 395 250 10
150 1,5 395 230 8
T6 pulled 25 415 370 6 5
25 75 460 415 7
75 150 465 420 7
150 200 430 350 6
200 250 420 320 5
Physical properties General properties
(Guide values for 20° C)
Density of g/cm3 2,80 Resistance to:
Solidification range ° C 510-640 – Sea water 4
Electrical conductivity MS/m 21-24 – Weather conditions 3
Thermal conductivity W/(mK) 140-200 Hot formability
Therm. linear expansion- – extrusion presses 4
Coeffizient 10-6/K 22,8 – Drop forging 3
Modulus of elasticity N/mm2 70.000 – Open die forging 3
Weldability Surface treatment
Fusion welding Protection anodizing 3
– Gas 6 Anodizing (decorative) 6
– WIG 6 Painting/Coating 3
– MIG 6
Resistance welding 2 Contact with food no
Machinability
T4/T6 2

3. Main application / Special features of EN AW – 2014:

Forged parts for high loads. Artificially hardened condition = sufficient corrosion resistance / reduction of residual stresses.

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